Punching assembly and profile machining production line

Abstract

The utility model discloses a punching assembly and a section bar processing production line, and the punching assembly comprises a rack which is provided with a first conveying device; the two punching devices are located on the two sides of the first conveying device correspondingly, and the two punching devices are movably connected to the rack; the two punching devices are both provided with lower dies, the two lower dies are both provided with die cores opposite to each other, each die core is provided with a material hanging part, the punching devices are connected with a material pressing mechanism, the material pressing mechanism is provided with a push rod, and the moving path of the push rod passes through the horizontal plane where the corresponding material hanging part is located; a vertical die hole is formed in a die core of the punching device, and a stamping upper die is arranged at the position corresponding to the vertical die hole. And the lifting mechanism is provided with a lifting part, and the lifting part is located between the two lower dies. The punching assembly can achieve automatic punching of the narrow face of the rectangular pipe, the machining efficiency is effectively improved, the rectangular pipe can be prevented from toppling over during conveying, and the machining stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, and particularly relates to a punching assembly and a profile processing production line. Background Art

[0002] For the processing of profiles, it is generally divided into feeding, cutting, punching and discharging. In order to improve the processing efficiency of profiles, a conveyor belt can be used to connect various processing equipment in the processing order to realize production line production.

[0003] After the profile is cut, a plurality of rectangular tubes are formed. Existing automatic punching equipment generally only punches the wide surface of the rectangular tube. For example, in the "Punching Assembly and Profile Processing Line Including the Same" with the publication number CN219786229U, although this existing technology can automatically punch the wide surfaces of multiple rectangular tubes at the same time, for punching the narrow surface of the rectangular tube, since it is prone to tipping due to insufficient stability during transportation, at present, it can only be punched by the method of manual alignment of the die, and the processing efficiency is extremely low.

[0004] In addition, since the automatic punching equipment is one of the links of the production line, in order to use the narrow surface of the rectangular tube as the bottom surface, it is necessary to adjust the upstream cutting equipment and feeding equipment. However, with the existing technical level, it does not support the feeding of profiles in an upright manner, and it is bound to tip over during feeding. Summary of the Utility Model

[0005] The utility model aims to provide a punching assembly to realize automatic punching of the narrow surface of a rectangular tube.

[0006] The punching assembly according to the first aspect embodiment of the utility model includes:

[0007] A frame provided with a first conveying device;

[0008] Two punching devices, the two punching devices are respectively located on both sides of the first conveying device, the two punching devices are movably connected to the frame, and the moving direction of the punching devices is orthogonal to the conveying direction of the first conveying device; both of the two punching devices are provided with lower dies, both of the lower dies are provided with die cores facing each other, each die core has a first outer end face facing the first conveying device, all the first outer end faces are provided with hanging parts, at least one of the punching devices is connected with a pressing mechanism, the pressing mechanism is provided with a telescopic push rod, and the moving path of the push rod passes through the horizontal plane where the corresponding hanging part is located; at least one of the punching devices is provided with a vertical die hole in its die core and a punching upper die at the corresponding position of the vertical die hole;

[0009] The lifting mechanism is provided with a lifting part that can be raised and lowered, wherein the moving path of the lifting part passes through the conveying surface of the first conveying device, and the lifting part is located between the two lower molds.

[0010] The punching assembly according to the embodiment of the utility model has at least the following beneficial effects: when it is necessary to punch the narrow side of the rectangular tube, firstly, the wide side of the rectangular tube is placed as the bottom side on the first conveying device; after the first conveying device conveys the rectangular tube to the specified position, the lifting mechanism lifts the rectangular tube upward through the lifting part; then, the two punching devices move toward the direction close to the first conveying device until the hanging parts on both sides extend into the interior of the rectangular tube respectively; then, the lifting mechanism controls its lifting part to descend to reserve enough space for the rectangular tube to flip; during this process, the pressing mechanism extends downward. The push rod drives the rectangular tube to flip from a horizontal state to a vertical state, and then the two punching devices continue to move in the direction close to the first conveying device until the mold cores on both sides are respectively extended into the interior of the rectangular tube. At this time, the two ends of the rectangular tube are respectively supported outside the two mold cores and cover the vertical mold holes. Finally, the stamping mechanism drives the stamping upper mold to punch in the direction of the vertical mold holes, thereby completing the punching of the narrow surface of the rectangular tube. Compared with the prior art, the punching assembly can realize automatic punching of the narrow surface of the rectangular tube, effectively improve the processing efficiency, and can also prevent the rectangular tube from tipping over during transportation, thereby improving the processing stability.

[0011] According to some embodiments of the utility model, each of the lower dies is provided with a plurality of die cores, and all die cores of each of the lower dies are spaced apart along the conveying direction of the first conveying device to achieve synchronous punching of a plurality of rectangular tubes.

[0012] According to some embodiments of the utility model, all mold cores are provided with a guide slope connected to the first outer end surface, and the height of the guide slope gradually increases from the first outer end surface. When the two mold cores gradually extend into the two side openings of the rectangular tube, the two ends of the rectangular tube can be positioned and supported outside the two mold cores through the corresponding guide slopes, thereby fixing the position of the rectangular tube.

[0013] According to some embodiments of the present invention, in order to avoid interference, the number of the push rods is less than or equal to the number of the hanging parts, and the hanging parts and the moving paths of the push rods are staggered.

[0014] According to some embodiments of the present utility model, a first material blocking mechanism is connected to the first conveying device on its conveying path. The first material blocking mechanism is provided with a liftable first material blocking portion, and the lifting mechanism is located upstream of the first material blocking mechanism. The first material blocking portion is used to define the relative position of the rectangular tube on the first conveying device, so that the hanging portions on both sides of the rectangular tube can accurately extend into the openings on both sides of the rectangular tube.

[0015] According to some embodiments of the present utility model, in order to adapt to rectangular tubes of different lengths, the first conveying device includes two conveying sub-lines that are parallel to each other and spaced apart, and the distance between the two conveying sub-lines is adjustable.

[0016] According to some embodiments of the present utility model, a magnetic member is provided on the upper surface of the lifting portion. During the process of the lifting portion lifting the rectangular tube upward, the magnetic member can maintain the stability of the rectangular tube when it is lifted upward, and at the moment when the lifting portion moves downward away from the rectangular tube, the magnetic member strengthens the inertial deflection of the rectangular tube through magnetic force.

[0017] According to some embodiments of the present utility model, a chip discharge groove is provided below the vertical die hole of the punching device, so that the punched sheet can fall from the chip discharge groove into the collection container located below.

[0018] According to some embodiments of the present utility model, the lower die is connected with a demoulding mechanism, and the demoulding mechanism is provided with a demoulding plate extending towards the first conveying device. After punching is completed, the two punching devices move away from the first conveying device respectively. At this time, the demoulding mechanism drives the demoulding plate to extend towards the position of the rectangular tube to demould the rectangular tube.

[0019] According to the profile processing production line of the second aspect embodiment of the present utility model, it includes a loading assembly, a cutting assembly, a second conveying device and the above-mentioned punching assembly. The loading assembly, the cutting assembly, the second conveying device and the punching assembly are connected in sequence. The first conveying device is connected to the side of the second conveying device. A first pushing mechanism is provided on the second conveying device, and the first pushing mechanism has a pushing direction parallel to the first conveying device.

[0020] The profile processing production line according to the embodiment of the present utility model has at least the following beneficial effects: Since the profile processing production line integrates four processes of loading, cutting, punching and unloading, the profile processing production line can meet the automatic processing of rectangular tubes.

[0021] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Brief Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:

[0023] Figure 1 is a schematic perspective view of the punching assembly according to an embodiment of the present utility model;

[0024] Figure 2 is Figure 1 the front view of the punching assembly shown;

[0025] Figure 3 is Figure 1 the top view of the punching assembly shown;

[0026] Figure 4 is a schematic perspective view of the lower die and the blank holding mechanism according to an embodiment of the present utility model;

[0027] Figure 5 is Figure 4 the bottom view of the lower die and the blank holding mechanism shown;

[0028] Figure 6 is a schematic perspective view of the profile processing production line according to an embodiment of the present utility model;

[0029] Figure 7 is Figure 6 the top view of the profile processing production line shown.

[0030] In the drawings: 100 - frame, 200 - punching device, 110 - first slide rail, 300 - first conveying device, 330 - blanking plate, 310 - conveying branch line, 340 - mounting plate, 320 - sliding plate, 400 - lead screw, 410 - nut block, 420 - hand wheel, 311 - regular polygon transmission shaft, 312 - conveying motor, 321 - second slide rail, 201 - first oil cylinder, 202 - second oil cylinder, 210 - lower die, 220 - die core, 221 - first outer end face, 222 - guiding inclined surface, 223 - material hanging part, 224 - vertical die hole, 500 - stamping mechanism, 510 - stamping upper die, 600 - first material blocking mechanism, 610 - first material blocking part, 611 - first induction switch, 700 - lifting mechanism, 710 - lifting part, 711 - magnetic part, 800 - demolding mechanism, 810 - demolding rod, 811 - demolding plate, 900 - blank holding mechanism, 910 - moving plate, 911 - push rod, 240 - chip removal groove, 10 - punching assembly, 20 - second conveying device, 21 - material blocking gate, 22 - first material pushing mechanism, 23 - first push plate, 11 - second material blocking mechanism, 24 - baffle, 25 - second material pushing mechanism. Detailed Embodiments

[0031] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0033] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first", "second", "third", etc., it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0034] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0035] As Figures 1 to 3 shown, according to the punching assembly 10 of the first aspect embodiment of the present utility model, it includes a frame 100 and two punching devices 200. The frame 100 is the installation reference for all components. On the left and right sides of the frame 100, there are first slide rails 110 arranged along the front and rear directions. A first conveying device 300 is connected to the frame 100. The first conveying device 300 has a conveying direction from right to left. At the conveying end of the first conveying device 300, there is a downwardly inclined blanking plate 330. The first conveying device 300 can be selected as a conveyor belt with a certain width, or it is composed of two conveying sub-lines 310 arranged parallel to each other and at intervals. In this embodiment, in order to adapt to rectangular tubes of different lengths, the first conveying device 300 is preferably composed of two conveying sub-lines 310 arranged parallel to each other and at intervals.

[0036] Specifically, each conveying branch line 310 is a narrow conveyor belt. One of the conveying branch lines 310 is fixedly connected to the frame 100 through a mounting plate 340, while the other conveying branch line 310 is slidably connected to two first slide rails 110 of the frame 100 through an externally connected slide plate 320, so that the distance between the two conveying branch lines 310 is adjustable. To adjust the distance between the two conveying branch lines 310, the mounting plate 340 is connected with a lead screw 400 through a bearing block. The slide plate 320 is provided with a nut block 410 threadedly connected to the lead screw 400, and a hand wheel 420 is provided at the end of the lead screw 400. When the user rotates the hand wheel 420, the lead screw 400 also rotates accordingly, and then drives the nut block 410 to move along the length direction of the lead screw 400, finally realizing the adjustment of the distance between the two conveying branch lines 310.

[0037] Further, the driving wheels of the two conveying branch lines 310 are jointly connected with a regular polygon transmission shaft 311 to achieve synchronous connection of the two driving wheels. And because the length of the regular polygon transmission shaft 311 is greater than the maximum adjustment amount between the two conveying branch lines 310, no matter how the distance between the two conveying branch lines 310 is adjusted, the regular polygon transmission shaft 311 can also ensure the synchronous connection of the two driving wheels, so that the two conveying branch lines 310 can share the same conveying motor 312.

[0038] In addition, the two punching devices 200 are respectively located on the front and rear sides of the first conveying device 300. Two second slide rails 321 arranged in the front-rear direction are provided on the upper surface of the slide plate 320 connected to the conveying branch line 310. One of the punching devices 200 is slidably connected to the two second slide rails 321 of the slide plate 320, and a first oil cylinder 201 is connected between the punching device 200 and the slide plate 320. The position of the punching device 200 on the slide plate 320 is controlled by the first oil cylinder 201. At the same time, the other punching device 200 is slidably connected to the two first slide rails 110 of the frame 100, and a second oil cylinder 202 is connected between the punching device 200 and the fixedly arranged conveying branch line 310. The position of the punching device 200 on the frame 100 is controlled by the second oil cylinder 202. In summary, the moving directions of the two punching devices 200 are orthogonal to the conveying direction of the first conveying device 300. When the user rotates the hand wheel 420, the movably arranged conveying branch line 310 and the punching device 200 connected thereto can move relative to the fixedly arranged conveying branch line 310 simultaneously to adapt to rectangular pipes of different lengths. After the user adjusts the relative positions of the various components according to the size of the rectangular pipe, the two punching devices 200 can approach or move away from the first conveying device 300 simultaneously under the drive of their respective oil cylinders.

[0039] It should be noted that the present utility model does not limit the spacing adjustment mechanism of the first conveying device 300, nor does it limit that the two punching devices 200 must be driven by hydraulic cylinders. Those skilled in the art can replace the above embodiments according to existing mechanisms, rather than being limited to the embodiments disclosed in the present utility model.

[0040] As Figure 1 and Figure 4 shown, in order to punch the narrow surface of the rectangular tube on the first conveying device 300, both punching devices 200 are provided with lower dies 210. Both lower dies 210 are provided with a plurality of die cores 220 facing each other. The die cores 220 are arranged according to the upright form of the rectangular tube, that is, the dimension of the die core 220 in the vertical direction is larger than its dimension in the horizontal direction. All the die cores 220 of each lower die 210 are arranged at intervals in the left-right direction. Each die core 220 has a first outer end face 221 facing the first conveying device 300. Chamfers are provided on the four sides of each first outer end face 221 to form a guiding inclined surface 222. At this time, the height of the guiding inclined surface 222 gradually increases starting from the first outer end face 221. A material hanging part 223 is provided on the first outer end face 221 of each die core 220. The dimension of the material hanging part 223 is less than or equal to the dimension of the die core 220. The material hanging part 223 is located at the upper part of the die core 220, and the shape of the material hanging part 223 can be selected as a conical body.

[0041] In addition, both punching devices 200 are provided with vertical die holes 224 in each die core 220, and a punching mechanism 500 is connected above each lower die 210 of both punching devices 200. The punching mechanism 500 can be selected as a hydraulic cylinder, which is provided with a telescopic driving part. The end of the driving part is connected with a punching upper die 510. The punching upper die 510 is arranged in a matching manner with the vertical die hole 224 to punch the rectangular tube.

[0042] Since the rectangular pipes are conveyed under the drive of the first conveying device 300, before punching the rectangular pipes, it is necessary to limit the positions of the rectangular pipes on the first conveying device 300 so that when the two punching devices 200 approach the first conveying device 300 simultaneously, all the hanging parts 223 on the front and rear sides can extend into the two side openings of the corresponding rectangular pipes. For this purpose, a first material blocking mechanism 600 is connected to each of the two conveying branch lines 310. The first material blocking mechanism 600 can be selected as a cylinder. The first material blocking mechanism 600 is provided with a first material blocking part 610 that moves up and down in the vertical direction. Each first material blocking part 610 is connected with a first induction switch 611. The first material blocking part 610 can rise above the conveying surface of the first conveying device 300 or descend below the conveying surface of the first conveying device 300. When multiple rectangular pipes are placed on the first conveying device 300 simultaneously, if the first rectangular pipe is blocked by the first material blocking part 610, at this time, the multiple rectangular pipes are arranged side by side in the left-right direction, so that all the hanging parts 223 on the front and rear sides can accurately extend into the two side openings of the corresponding rectangular pipes.

[0043] Finally, in order to turn the rectangular pipes from a horizontal state to a vertical state, a lifting mechanism 700 is connected to the first conveying device 300 at a position upstream of the first material blocking mechanism 600. Since the first conveying device 300 is composed of two conveying branch lines 310, the number of the lifting mechanisms 700 can be selected as two, and the two lifting mechanisms 700 are respectively connected to the two conveying branch lines 310. The lifting mechanism 700 can be selected as a cylinder, which is provided with a lifting part 710 that moves up and down in the vertical direction. The upper surface of each lifting part 710 is provided with a magnetic part 711. The magnetic part 711 can be selected as a permanent magnet. The lifting part 710 can rise above the conveying surface of the first conveying device 300 or descend below the conveying surface of the first conveying device 300, and the lifting part 710 is located between the two lower dies 210, so that the rising path of the rectangular pipes can intersect with the moving path of the die core 220. It can be understood that the lifting mechanism 700 can also be connected to the frame 100, and is not limited to the above embodiments.

[0044] With the above structure, when punching the narrow surface of the rectangular tube, first place the wide surfaces of multiple rectangular tubes as the bottom surfaces on the first conveying device 300. The first conveying device 300 conveys the multiple rectangular tubes. The first baffle portion 610 of the first baffle mechanism 600 is higher than the conveying surface of the first conveying device 300, thereby defining the positions of the multiple rectangular tubes on the first conveying device 300. After the first induction switch 611 on the first baffle portion 610 is triggered for a period of time, the lifting mechanism 700 drives the lifting portion 710 to lift the multiple rectangular tubes upward. In this embodiment, the lifting height of the lifting portion 710 is defined by setting a second induction switch, so that the rectangular tubes can be height-matched with the hanging portions 223. After that, the two punching devices 200 move in the direction close to the first conveying device 300 under the drive of their respective oil cylinders until the hanging portions 223 on both sides extend into the interiors of the corresponding rectangular tubes respectively. Then, the lifting mechanism 700 controls its lifting portion 710 to descend, and the first baffle mechanism 600 controls its first baffle portion 610 to descend to reserve enough space for the rectangular tubes to be flipped. At this moment, since the rectangular tubes lose the support of the lifting portion 710, the rectangular tubes can be flipped around the hanging portions 223 under the action of gravity. And at the moment when the lifting portion 710 moves downward away from the rectangular tubes, the magnetic member 711 strengthens the inertial deflection of the rectangular tubes through magnetic force, thereby flipping the rectangular tubes from the horizontal state to the vertical state.

[0045] Subsequently, the two punching devices 200 continue to move in the direction close to the first conveying device 300 until the die cores 220 on both sides extend into the interiors of each rectangular tube respectively. When the die cores 220 on both sides gradually extend into the two side openings of the rectangular tube, both ends of each rectangular tube can be respectively positioned and supported outside the two die cores 220 through the guiding inclined surfaces 222 and block the vertical die holes 224, thereby fixing the positions of each rectangular tube. Finally, the stamping mechanism 500 drives the stamping upper die 510 to stamp in the direction of the vertical die holes 224, thus completing the punching of the narrow surface of the rectangular tube. It should be noted that since the magnetic member 711 is provided on the upper surface of the lifting portion 710, during the process of the lifting portion 710 lifting the multiple rectangular tubes upward, the relative positions of the multiple rectangular tubes are temporarily fixed, avoiding the deviation of the positions of the multiple rectangular tubes during the lifting process.

[0046] After punching is completed, the upper stamping die 510 is driven by the stamping mechanism 500 to reset upward, and both punching devices 200 move away from the first conveying device 300 under the drive of their respective oil cylinders, so that multiple rectangular tubes can fall back onto the first conveying device 300. Once the multiple rectangular tubes pass over the first material blocking portion 610, the first material blocking mechanism 600 drives the first material blocking portion 610 to rise. Finally, the multiple rectangular tubes are discharged under the conveyance of the first conveying device 300. Since the rectangular tubes can be directly discharged after punching, even if the rectangular tubes fall over when they fall back onto the first conveying device 300 again, it will not affect their subsequent discharging.

[0047] In some other embodiments, after punching is completed, the lifting mechanism 700 drives its lifting portion 710 to rise upward to take over the rectangular tubes, so that the rectangular tubes can follow the lifting portion 710 and descend onto the first conveying device 300 to maintain the consistency of all rectangular tubes.

[0048] Furthermore, after punching is completed, it is possible that the rectangular tubes are difficult to demold, resulting in the rectangular tubes resetting together with the punching devices 200. To solve this technical problem, the lower die 210 is connected with a demolding mechanism 800. The demolding mechanism 800 can be selected as a cylinder. The demolding mechanism 800 is provided with a plurality of demolding rods 810 extending towards the first conveying device 300. All the demolding rods 810 pass through the lower die 210 and are commonly connected with a demolding plate 811. The demolding plate 811 is located below the mold core 220. After punching is completed, the two punching devices 200 move away from the first conveying device 300 respectively. At this time, the demolding mechanism 800 drives the demolding plate 811 to extend towards the position of the rectangular tubes, and the smooth demolding of the rectangular tubes from the lower die 210 is realized under the action of one pushing and one pulling. It can be understood that the present utility model does not limit the specific structure of the demolding mechanism 800. As long as the demolding mechanism 800 can demold the rectangular tubes, no matter what structure the demolding mechanism 800 is, it belongs to the protection scope of the present utility model.

[0049] Although the above structure can theoretically turn the rectangular tubes from a horizontal state to an upright state, so that the rectangular tubes can be conveyed with their wide sides and punched with their narrow sides. However, in the face of multiple rectangular tubes with similar length-width ratios, when the hanging portion 223 extends into the openings of the rectangular tubes, since the eccentricity of the rectangular tubes at this time is not sufficient to overcome the friction between adjacent two rectangular tubes, the rectangular tubes cannot automatically turn from a horizontal state to an upright state, and then interfere with the mold core 220, ultimately resulting in punching failure.

[0050] Such as Figure 1 、 Figure 4 and Figure 5As shown in the figure, to solve the above technical problems, at least one punching device 200 is connected to a blank holding mechanism 900. The blank holding mechanism 900 is arranged above the lower die 210. The blank holding mechanism 900 can be selected as a cylinder, which is provided with a moving plate 910 that expands and contracts in the up and down direction. The moving plate 910 is fixedly connected with a plurality of push rods 911. The number of the push rods 911 is consistent with the number of the die cores 220 of the corresponding punching device 200. The moving path of the push rods 911 passes through the horizontal plane where the corresponding hanging parts 223 are located. In order to keep the positions of all rectangular tubes on the same horizontal plane, all the hanging parts 223 are on the same horizontal plane. However, the present invention does not limit the positions of all the hanging parts 223. In some other embodiments, different hanging parts 223 can also be on different horizontal planes. Correspondingly, different push rods 911 can have different extended lengths, or they can have the same extended length on the premise of ensuring that they pass through the horizontal plane where the corresponding hanging parts 223 are located.

[0051] With the above structure, when punching the narrow surface of the rectangular tube, first place the wide surfaces of a plurality of rectangular tubes as the bottom surfaces on the first conveying device 300. The first conveying device 300 conveys the plurality of rectangular tubes. At the same time, the first material blocking mechanism 600 drives the first material blocking part 610 to rise to limit the positions of the plurality of rectangular tubes on the first conveying device 300. After the first induction switch 611 on the first material blocking part 610 is triggered for a period of time, the lifting mechanism 700 drives the lifting part 710 to lift the plurality of rectangular tubes upward. In this embodiment, a second induction switch is set to limit the lifting height of the lifting part 710 so that the rectangular tubes can be matched with the hanging parts 223 in height. After that, the two punching devices 200 move towards the direction close to the first conveying device 300 under the drive of their respective oil cylinders until the hanging parts 223 on both sides respectively extend into the interiors of the corresponding rectangular tubes. Then the lifting mechanism 700 controls its lifting part 710 to descend, and the first material blocking mechanism 600 controls its first material blocking part 610 to descend to reserve enough space for the rectangular tubes to flip. During this process, the blank holding mechanism 900 extends a plurality of push rods 911 downward to drive all the rectangular tubes to flip from the horizontal state to the vertical state.

[0052] It is understandable that the blank holding mechanism 900 can be provided on any one of the punching devices 200 or on both punching devices 200 simultaneously. During the flipping process of the rectangular tube, even if only one end of the rectangular tube is subjected to the pressure of the push rod 911, the entire rectangular tube can overcome the friction between adjacent two rectangular tubes and flip smoothly after superimposing the eccentric force and magnetic force. Of course, if the blank holding mechanism 900 is provided on both punching devices 200 simultaneously, the flipping success rate of the rectangular tube can reach over 99%. Since the number of the blank holding mechanisms 900 can be one or two, the number of the push rods 911 is less than or equal to the number of the hanging parts 223.

[0053] Furthermore, in order to prevent the push rod 911 from interfering with the hanging part 223 when extending, thereby exacerbating the clamping of the rectangular tube and making the rectangular tube unable to flip from the horizontal state to the vertical state, the moving paths of the hanging part 223 and the push rod 911 need to be arranged in a staggered manner. That is to say, when the blank holding mechanism 900 drives its push rod 911 to extend towards the horizontal plane where the corresponding hanging part 223 is located, the push rod 911 cannot contact the hanging part 223. After the rectangular tube is hung by the hanging part 223, even if the hanging part 223 is located at the middle position of the rectangular tube at this time, as long as the push rod 911 applies a certain pressure to the rectangular tube at a position deviating from the hanging part 223, the rectangular tube will flip accordingly.

[0054] In some other embodiments, if one-sided punching of the rectangular tube is performed, then only the vertical die hole 224 and the punching mechanism 500 are provided on one of the punching devices 200, or only one of the two punching mechanisms 500 is enabled.

[0055] In some embodiments of the present invention, the punching device 200 is provided with a chip discharging groove 240 below the vertical die hole 224, so that the punched chips can fall from the chip discharging groove 240 into the collection container of the frame 100.

[0056] As Figure 6 and Figure 7 shown, the profile processing production line according to the second aspect embodiment of the present invention includes the punching assembly 10 according to the first aspect embodiment of the present invention above, and further includes a loading assembly (not shown in the drawings), a cutting assembly (not shown in the drawings), and a second conveying device 20. The loading assembly can realize the loading of multiple profiles, and the loaded profiles are conveyed to the cutting assembly for slicing to obtain rectangular tubes with specified lengths. Since both the loading assembly and the cutting assembly are prior arts, the specific structures and working principles thereof are not described in detail in this embodiment.

[0057] After cutting, the plurality of rectangular tubes are transported to the second conveying device 20 for transportation. The second conveying device 20 has a conveying direction from back to front, and the first conveying device 300 is docked with one side of the second conveying device 20. If it is necessary to punch holes in the rectangular tubes, a material blocking gate 21 that can be opened and closed is installed on the second conveying device 20, and the material blocking gate 21 is driven by a cylinder. The second conveying device 20 is connected to a first material pushing mechanism 22 at an upstream position of the material blocking gate 21. The first material pushing mechanism 22 is located at another side of the second conveying device 20. The first material pushing mechanism 22 can be a cylinder, which is provided with a first push plate 23 that can be extended in the left and right direction. The first material pushing mechanism 22 is used to push the plurality of rectangular tubes from the second conveying device 20 to the first conveying device 300.

[0058] Furthermore, both conveying branches 310 are connected with a second material blocking mechanism 11, the structure of which can refer to the structure of the first material blocking mechanism 600, the second material blocking mechanism 11 is located upstream of the first material blocking mechanism 600, and the second material blocking mechanism 11 is provided with a second material blocking portion that is lifted and lowered in the up and down direction. When the first material pushing mechanism 22 pushes a plurality of rectangular tubes that need to be punched from the second conveying device 20 to the first conveying device 300, the second material blocking portion can limit the swing direction of the plurality of rectangular tubes, so that the plurality of rectangular tubes can be neatly arranged laterally on the first conveying device 300, so as to achieve preliminary alignment of the plurality of rectangular tubes.

[0059] It should be noted that if the rectangular tube does not need to be punched, the material blocking gate 21 is opened under the drive of the cylinder, and the rectangular tube can be directly unloaded along the second conveying device 20, or a third conveying device (not shown in the drawings) is docked on the side of the second conveying device 20, and a baffle 24 is provided at the end of the second conveying device 20. The second conveying device 20 is connected to a second pushing mechanism 25 at the upstream position of the baffle 24. The structure of the second pushing mechanism 25 can refer to the structure of the first pushing mechanism 22. The second pushing mechanism 25 is used to push multiple rectangular tubes from the second conveying device 20 to the third conveying device, so that the multiple rectangular tubes can be arranged horizontally on the third conveying device and unloaded under the transportation of the third conveying device.

[0060] Since the profile processing production line integrates the four working steps of loading, cutting, punching and unloading, the profile processing production line can meet the requirements of automated processing of rectangular tubes.

[0061] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Punch assembly, characterized in that, Comprising: A frame (100) provided with a first conveying device (300); Two punching devices (200), the two punching devices (200) are respectively located on both sides of the first conveying device (300), the two punching devices (200) are movably connected to the frame (100), and the moving direction of the punching devices (200) is orthogonal to the conveying direction of the first conveying device (300); both of the two punching devices (200) are provided with lower dies (210), both of the two lower dies (210) are provided with die cores (220) facing each other, each die core (220) has a first outer end face (221) facing the first conveying device (300), all the first outer end faces (221) are provided with material hanging parts (223), at least one punching device (200) is connected with a material pressing mechanism (900), the material pressing mechanism (900) is provided with a telescopic push rod (911), and the moving path of the push rod (911) passes through the horizontal plane where the corresponding material hanging part (223) is located; at least one punching device (200) is provided with a vertical die hole (224) in its die core (220), and a punching upper die (510) is provided at a corresponding position of the vertical die hole (224); A lifting mechanism (700) provided with a liftable lifting part (710), the moving path of the lifting part (710) passes through the conveying surface of the first conveying device (300), and the lifting part (710) is located between the two lower dies (210).

2. The punching assembly according to claim 1, wherein: Each lower die (210) is provided with a plurality of die cores (220), and all the die cores (220) of each lower die (210) are arranged at intervals along the conveying direction of the first conveying device (300).

3. The punching assembly according to claim 1 or 2, characterized in that: All die cores (220) are provided with guiding inclined surfaces (222) connected to the first outer end face (221), and the height of the guiding inclined surfaces (222) gradually increases starting from the first outer end face (221).

4. The punching assembly according to claim 1 or 2, characterized in that: The number of the push rods (911) is less than or equal to the number of the material hanging parts (223), and the material hanging parts (223) are arranged in a dislocation manner with respect to the moving path of the push rods (911).

5. The punching assembly according to claim 1, wherein: The first conveying device (300) is connected with a first material blocking mechanism (600) on its conveying path, the first material blocking mechanism (600) is provided with a liftable first material blocking part (610), and the lifting mechanism (700) is located at an upstream position of the first material blocking mechanism (600).

6. The punching assembly according to claim 1, wherein: The first conveying device (300) includes two conveying sub-lines (310) arranged in parallel and at intervals, and the distance between the two conveying sub-lines (310) is adjustable.

7. The punching assembly according to claim 1, wherein: The upper surface of the lifting part (710) is provided with a magnetic part (711).

8. The punching assembly according to claim 1, wherein: The punching device (200) is provided with a chip discharging groove (240) below the vertical die hole (224).

9. The punching assembly according to claim 1, characterized in that: The lower die (210) is connected with a demolding mechanism (800), and the demolding mechanism (800) is provided with a demolding plate (811) extending towards the first conveying device (300).

10. Profile processing production line, characterized in that, Comprising: A loading assembly, a cutting assembly, a second conveying device (20), and a punching assembly (10) as recited in any one of claims 1 to 9, wherein the loading assembly, the cutting assembly, the second conveying device (20), and the punching assembly (10) are sequentially docked, the first conveying device (300) is docked on the side of the second conveying device (20), and a first pushing mechanism (22) is provided on the second conveying device (20), and the first pushing mechanism (22) has a pushing direction parallel to the first conveying device (300).

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